"500MHz Cortex-A9" Android netbook for $150 should have quickly raised several red flags. One of the comments says it's really ARM9, and I'm much more inclined to believe that.
EDIT: Yep, the youtube confirms it, ARM9. Come on Engadget, this is embarrassing. Also, "it could be $149", from the guy interviewing, not the company.
These Youtube videos always amuse me.